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We want to replace the original two-stroke Johnson 9.9 with a remote control four-stroke - strongly considering the Yamaha High Thrust 8. Has anyone done this

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, Aug 10 5:50 PM

We want to replace the original two-stroke Johnson 9.9 with a remote
control four-stroke - strongly considering the Yamaha High Thrust 8.
Has anyone done this and what motor and modifications were involved?
Thanks, Ken and Kris Cardwell
full mOOn
'93 wing keel #284
Northern California

dellandanpries

... involved? ... We have a yamaha 9.9 outboard on Caudillo. Works great. Mounted on the existing standard outboard bracket without modification. The yamaha

>
> We want to replace the original two-stroke Johnson 9.9 with a remote
> control four-stroke - strongly considering the Yamaha High Thrust 8.
> Has anyone done this and what motor and modifications were

We have a yamaha 9.9 outboard on Caudillo. Works great. Mounted on
the existing standard outboard bracket without modification. The
yamaha has a detachable tiller which is the remote and I mounted this
to the port side stern rail seat. The factory electric starter button
is on the face of the motor, so I wired in a parallel button to the
remote location. This gives us throttle, forward/neutral/reverse, and
kill switch on the tiller and start on the button I added all from
the port stern rail. Frankly I have had good luck with all brands of
outboards if they were put in good order, but I especially like this
yamaha. The only mod I have left to make is to add a fuel shut off
valve between the tank and motor. The tank is a bit higher than the
motor, so fuel delivery is good, but with the motor tilted up for
sailing the float in the carb is shifted to vertical and may not
properly close off fuel flow at rest such that fuel could gravity
flow from tank to motor, through carb and either flood engine or
spill. presently I simply step back on the swim platform and
disconnet the fuel hose when I tilt the motor up, and reconnect it
when putting the motor back in service position, but I think a simple
small valve on the front motor frame would make this a more secure
and workmanlike setup. The four stroke is great, quiet and fuel
efficient.

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